MICHAEL A. CHANG (M.D.) – Ophthalmology Physician, NPI 1366438624
Ophthalmology Physician
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Profile Insights
NPPES metrics only — not quality of care.
801 OPHTHALMOLOGY in MA
Provider Addresses for MICHAEL A. CHANG (M.D.)
97 LIBBEY INDUSTRIAL PKWY STE 100
EAST WEYMOUTH, MA 021893110
Phone: (781) 331-3300
Fax: (781) 337-8356
Type: Mailing
110 HARTWELL AVE STE 201
LEXINGTON, MA 024213118
Phone: (781) 890-1023
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-04-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050407000363 | I | Ophthalmology | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 92014 | Established patient complete exam of visual system | 1,037 | 994 | $0 |
| 92012 | Established patient problem focused exam of visual system | 576 | 444 | $0 |
| 92083 | Exam of visual field with extended testing | 425 | 408 | $0 |
| 92133 | Imaging of optic nerve | 413 | 397 | $0 |
| 92004 | New patient complete exam of visual system | 127 | 127 | $0 |
Insurance plans in this area (ZIP 02189)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| OPHTHALMOLOGY | MA | 92012 | Eye and medical examination for diagnosis and treatment, established patient | 1078 | 635 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MA | |
| O P T O M E T R Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| - | OH | |
| N E U R O L O G Y | MA | |
| O T O L A R Y N G O L O G Y | MA | |
| O T O L A R Y N G O L O G Y | MA | |
| N E U R O L O G Y | MA | |
| - | MA | |
| Diagnostic Radiology | MA |
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